6885733c41
The test cases src/test/mir-opt/building/custom/consts.rs and src/test/mir-opt/const_prop/mutable_variable_no_prop.rs are currently failing on big-endian platforms as the binary encoding of some constants is hard-coded in the MIR test files. Fix this by choosing constant values that have the same encoding on big- and little-endian platforms. The test case src/test/mir-opt/issues/issue_75439.rs is failing as well, but since the purpose of the test is to validate handling of big-endian integer encodings on a little-endian platform, it does not make much sense to run it on big-endian platforms in the first place - we can just ignore it there. Fixed part of https://github.com/rust-lang/rust/issues/105383.
90 lines
4.7 KiB
Diff
90 lines
4.7 KiB
Diff
- // MIR for `foo` before MatchBranchSimplification
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+ // MIR for `foo` after MatchBranchSimplification
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fn foo(_1: [u8; 16]) -> Option<[u8; 4]> {
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debug bytes => _1; // in scope 0 at $DIR/issue_75439.rs:+0:12: +0:17
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let mut _0: std::option::Option<[u8; 4]>; // return place in scope 0 at $DIR/issue_75439.rs:+0:32: +0:47
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let _2: [u32; 4]; // in scope 0 at $DIR/issue_75439.rs:+2:9: +2:15
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let mut _3: [u8; 16]; // in scope 0 at $DIR/issue_75439.rs:+2:47: +2:52
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let mut _5: [u8; 4]; // in scope 0 at $DIR/issue_75439.rs:+5:14: +5:38
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let mut _6: u32; // in scope 0 at $DIR/issue_75439.rs:+5:33: +5:35
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scope 1 {
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debug dwords => _2; // in scope 1 at $DIR/issue_75439.rs:+2:9: +2:15
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scope 3 {
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debug ip => _4; // in scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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let _4: u32; // in scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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scope 4 {
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}
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}
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}
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scope 2 {
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}
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bb0: {
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StorageLive(_2); // scope 0 at $DIR/issue_75439.rs:+2:9: +2:15
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StorageLive(_3); // scope 2 at $DIR/issue_75439.rs:+2:47: +2:52
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_3 = _1; // scope 2 at $DIR/issue_75439.rs:+2:47: +2:52
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_2 = transmute::<[u8; 16], [u32; 4]>(move _3) -> bb1; // scope 2 at $DIR/issue_75439.rs:+2:37: +2:53
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// mir::Constant
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// + span: $DIR/issue_75439.rs:8:37: 8:46
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// + literal: Const { ty: unsafe extern "rust-intrinsic" fn([u8; 16]) -> [u32; 4] {transmute::<[u8; 16], [u32; 4]>}, val: Value(<ZST>) }
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}
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bb1: {
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StorageDead(_3); // scope 2 at $DIR/issue_75439.rs:+2:52: +2:53
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switchInt(_2[0 of 4]) -> [0: bb2, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
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}
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bb2: {
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switchInt(_2[1 of 4]) -> [0: bb3, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
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}
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bb3: {
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switchInt(_2[2 of 4]) -> [0: bb5, 4294901760: bb6, otherwise: bb8]; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
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}
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bb4: {
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StorageLive(_5); // scope 3 at $DIR/issue_75439.rs:+5:14: +5:38
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StorageLive(_6); // scope 4 at $DIR/issue_75439.rs:+5:33: +5:35
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_6 = _4; // scope 4 at $DIR/issue_75439.rs:+5:33: +5:35
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_5 = transmute::<u32, [u8; 4]>(move _6) -> bb7; // scope 4 at $DIR/issue_75439.rs:+5:23: +5:36
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// mir::Constant
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// + span: $DIR/issue_75439.rs:11:23: 11:32
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// + literal: Const { ty: unsafe extern "rust-intrinsic" fn(u32) -> [u8; 4] {transmute::<u32, [u8; 4]>}, val: Value(<ZST>) }
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}
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bb5: {
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StorageLive(_4); // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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_4 = _2[3 of 4]; // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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goto -> bb4; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
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}
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bb6: {
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StorageLive(_4); // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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_4 = _2[3 of 4]; // scope 3 at $DIR/issue_75439.rs:+4:27: +4:29
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goto -> bb4; // scope 3 at $DIR/issue_75439.rs:+4:12: +4:30
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}
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bb7: {
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StorageDead(_6); // scope 4 at $DIR/issue_75439.rs:+5:35: +5:36
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Deinit(_0); // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
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((_0 as Some).0: [u8; 4]) = move _5; // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
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discriminant(_0) = 1; // scope 3 at $DIR/issue_75439.rs:+5:9: +5:39
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StorageDead(_5); // scope 3 at $DIR/issue_75439.rs:+5:38: +5:39
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StorageDead(_4); // scope 1 at $DIR/issue_75439.rs:+6:5: +6:6
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goto -> bb9; // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6
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}
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bb8: {
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Deinit(_0); // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13
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discriminant(_0) = 0; // scope 1 at $DIR/issue_75439.rs:+7:9: +7:13
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goto -> bb9; // scope 1 at $DIR/issue_75439.rs:+4:5: +8:6
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}
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bb9: {
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StorageDead(_2); // scope 0 at $DIR/issue_75439.rs:+9:1: +9:2
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return; // scope 0 at $DIR/issue_75439.rs:+9:2: +9:2
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}
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}
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